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•
3.
4.
Verify Electrical Requirements
Verification of the electrical supply should be made to be certain the voltage. phase
and frequency match that of the pump motor. The proper operating voltage and other
electrical information can be found on the motor nameplate. These motors are designed
to run on ±10% of the nameplate-rated voltage. Wiring connection diagrams can be found
inside the terminal box cover and later in these Installation and Operating Instructions. If
voltage variations are larger than ±10%, do not operate the pump.
Pumped Liquid Requirements
CAUTION: This pump is intended for use with water only.
Your Versa Flo UPS pump can be used to circulate:
•
Potable hot water
•
Water for hydronic heating
•
Cooling water
•
In domestic hot water systems it is advisable to use bronze pumps (VersaFlo
UPS model) only for water with a degree of hardness lower than 14 grains
per gallon of hardness. For water with a higher degree of hardness, a direct
coupled Versa Flo TP pump is recommended.
•
If the pump is installed in a heating system, the water should meet the
requirements of accepted standards on water quality in heating systems.
The pump is lubricated and cooled by the liqUid being pumped. Therefore, the
pumped liquid must always be allowed to circulate through the pump. Extended
periods without circulation will cause premature wear to the bearings and excessive
motor heat. The pumped liquid must also meet the following requirements:
MINIMUM PUMP
INLET PRESSURE
(During Operation)
At
These
liquid
Temps
UPS
16rF
194°F
230°F
Model
75°C
90°C
110°C
[psi]
hf
[psi]
hf
[psi]
hf
32-40/4 0.7
1.6
2.2
5.1
21.0 48.5
32-80/2 0.7
1.6
5.1
11.8 23.9 55.2
32-160/2 11.6 26.8 16.0 37.0 34.1 78.8
40-40/4 0.7
1.6
4.4 10.2 23.2 53.6
40-80/4 0.7
1.6
1.5
3.5 18.1 41.8
40-80/2 6.5 15.0 10.9 25.2 29.0 67.0
40-160/2
5.1
11.8 9.4 21.7 27.6 63.8
40-240/2 11.6 26.8 16.0 37.0 34.1 78.8
50-40/4 0.7
1.6
2.9
6.7 21.8 50.4
50-80/4 0.7
1.6
4.4 10.2 23.2 53.6
50-80/2 4.4 10.2 8.7 20.1 26.8 61.9
50-160/2 11.6 26.8 16.0 37.0 34.1 78.8
50-240/2 10.2 23.6 14.5 33.5 32.6 75.3
80-40/4 11.6 26.8 16.0 37.0 34.1 78.8
80-80/4 14.5 33.5 18.9 43.7 37.0 85.5
80-160/2 21.8 50.4 26.1 60.3 43.5 100.5
100-40/4 27.6 63.8 31.9 73.7 50.0 115.5
LIQUID
TEMPERATURE
RANGE
Continuously: 14°F (-10°e)
up to 230°F (no°e)
Intermittent: < 284°F (140°e)
for short periods of time.
Domestic Hot Water:
<140°F (60°e)
Page 2
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